Lexmark T652 Service Manual page 15

Assembly 22: Miscellaneous 1.....................................................................................................................507
Assembly 23: Miscellaneous 2................................................................................................................... 509
Assembly 24: Power cords.............................................................................................................................511
Assembly 25: Universal trays and accessories........................................................................................513
Appendix A: Printer specifications......................................................... 515
Power consumption........................................................................................................................................ 515
Product power consumption ...................................................................................................................................515
Power Saver.................................................................................................................................................................515
Off mode.......................................................................................................................................................................515
Total energy usage ....................................................................................................................................................516
Noise emission levels..................................................................................................................................... 516
Temperature information............................................................................................................................... 516
Appendix B: Options and features..........................................................517
Available internal options.............................................................................................................................. 517
Media handling options..................................................................................................................................517
Appendix C: Theory of operation............................................................519
POR sequence..................................................................................................................................................519
Printer control................................................................................................................................................... 519
Printer theory.................................................................................................................................................... 519
T650 with duplex, paper path, rolls, and sensors .............................................................................................519
T652 and T654 with duplex, paper path, rolls, and sensors ........................................................................ 520
Functions of main components ..............................................................................................................................521
Media tray assembly.................................................................................................................................................522
MPF ...............................................................................................................................................................................524
Registration .................................................................................................................................................................526
Transfer ........................................................................................................................................................................527
Polygon printhead assembly..................................................................................................................................527
Oscillating printhead assembly .............................................................................................................................529
Fuser .............................................................................................................................................................................530
Fuser components .....................................................................................................................................................531
Fuser unit assembly (types 1 and 2)......................................................................................................................533
Exit.................................................................................................................................................................................534
Drive..............................................................................................................................................................................535
Electrical components and controller ..................................................................................................................536
Printhead control ....................................................................................................................................................... 537
Fuser control............................................................................................................................................................... 537
Xerographic and print cartridge components ...................................................................................................538
High capacity input tray (HCIT) tray assembly...................................................................................................544
250-sheet/550-sheet tray assembly....................................................................................................................545
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